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Author Question: An air contaminant that is most difficult to remove through common filtration methods is: A) ... (Read 248 times)

serike

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on: Jul 24, 2018
An air contaminant that is most difficult to remove through common filtration methods is:
 
  A) Pollen B) Mold spores C) Sawdust D) Virus

Question 2

To resist corrosion, the recuperative cell on a condensing oil furnace is made of:
 
  A) Aluminized steel. B) High-quality stainless steel.
  C) Teflon-coated steel. D) Heavy galvanized steel.


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matt95

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Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

B


serike

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Reply 2 on: Jul 24, 2018
:D TYSM

kishoreddi

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Reply 3 on: Yesterday
Excellent

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